Air-separator and water-seal fitting.



PATENTED MAR. 7, 1905.

S. V. SHAROOD. AIR SEPARATOB. AND WATER SEAL FITTING.

APPLICATION FILED JUNE 23. 1904.

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` Patented March '7, 1905.

UNTTED STATns PATENT Critics,

SAMUEL V. SHAROOD, CF BROCKTON, MASSACHUSETIS, ASSIG'NOR OF ONE- HALF TO LUCIUS R. CHURCHILL, OF BRCCKTON, MASSACHUSE'IIS.

AIR-SEPARATOF( AND WATER-SEAL FITTING..

SPECIFICATION forming part of Letters Patent No. I73L1,1E35, dated March 7', 1905.

Application filed June 23, 1904. Serial No. 213,879.

Be it known that l, SAMUEL V. SHA1-100D, a citizen ot' the United States, residing'at Brockton, in the State o t Massach usetts, have invent- 5 ed certain new and useful Improvements in Air-Separators and l/Vater-Seal Fittings; and l do declare the following' to be a full, clear, and exact description oi the invention, such as will enable others skilled in the art to which it ap- IO pertains to make and use the same.`

My invention relates to inmrovements in air-separating' and water-seal devices adapted ior use in connection with a steam-pump to enable the latter to be successfully employed I5 for pumping hot water without the use of a receiver; and it consists in the construction, combination,and arrangement ot' devices hereinafter described and claimed.

The object ot' my invention is to provide a 2O novel, cheap, simple, compact, and ef'licient device for use in connection with a steam-pump employed for pumping' hot water adapted to eiTect a positive water seal of the valves ot' the pump and for venting' the air from Vthe pump, thereby preventing' the latter from becoming` steam-bound.

My improved device is adapted to be used in connection with a steam-pump for exhausting' from heating-coils which may be a part ot' a heating' system, steam-vats, drie-rs, and the like devices and, in fact, for exhausting' from any source where the condensation from steamcoils requires to be taken away.

In the accompanying' drawings, Figure 1 is a side elevation ot' a water-seal device and airseparator embodying' my improvements,show ing' the same connected to a steam-pump, the latter and the connections being' indicated diagrammatically. Fig'. 2 is a sectional view of 40 my improved water-seal device and air-separator.

1 in the drawings represents the water end ol a steam-pump, to which is connected one end oll the suction-pipe 2, through which the water ol condensation from the heating' or drying' system is conducted to the pump. Also connected with the pump is a delivery-pipe 3.

A separator and water seal A is mounted adfacent to the pump and in the Form herein shown is a two-part structure, the separator per se comprising' a chamber 125, closed at its lower end by a head 14 and at its upper end by a head l5, connected thereto by a coupling' 16, having' two branches 17and 1S, the iormer receiving' the screw-threzuled end ol a pipe 19, connected to the water end of the pumpl and serving' 'for the exhaust ol water therefrom,`

,said pipe being' m'ovided with a controlling'- valve 20. Coupled to the inner end of the pipe 19 by an elbow S21 is a pendent pipe 22, which extends down into the chamber 13 to near the bottom thereof and is adapted to con duct the water and air discharged from the pump to said chamber 13. The coupling' 1G is connected to the head 15 by a screw-threzuled ring' 23, and a similar ring` or collar 24 connects the upper end oi' the head with a valvecasing' 25, having' an outlet-pipe 2G provided with a controlling-valve 27 and containing' a ball-valve 28, controlling' the port 29, communicating' with said pipe. The valve 28 may `be held closed to its seat by a screw-threaded stem 30, having' an outer operating-handle 31 and an inner cag'e or yoke 32, which receives the valve and allows it to have normal independent movement while retaining' it from dislocation. By screwing' down the stem 30 the yoke 32 may, however, be brought into direct engagement with the valve, thus holding it immovable on its seat. 8O

In the operation of the parts thus far described it will be understood that the water entering' the chamber 13 through the pipes 19 and 20 remains in said chamber until it reaches the level of the connection 18, when it discharges in the manner hereinafter described, and that the water normally maintains such level in the selliarator, while the air bubbles up therethrough and finally exhausts to the atmosphere through the valved port 9.9 and pipe 26.

.Disposed along-side the separator is a sealchamber 33, closed at its upper end by a head or coupling' 35, thel latter having an inlet or connection 36 connected with the ,connection 18 of the separator by a union-pipe 37. Ex-

tending' down into the chamber' 13 to near the bottom thereof 1s a pendent pipe 38, which 1s yinto the pump.

screw-threaded at its upper end to engage the j sation, thus obviating the necessity of erncoupling or head 35 and to also engage an elbow or coupling 39, connected with the pipe 40, communicating with the pipe 37 through said coupling 39 and extending therefrom to the pipe 2, and provided between the seal and said pipe with a check-valve 4Q, which will allow water to pass from the seal to the pipe 2, but prevents its return, and a cut-0H valve 43, by which the iiow of water between the seal and pipe may be entirely cut otf.

1t will oil course be understood that the head 15 and casing 25 form an air and vapor chamber which receives the air and vapor from the separator and exhausts the same to the atmosphere. The pipe 26 instead of discharging into the atmosphere may, however, lead to a suitable storage-tank in which the air and vapor may be stored Linder pressure for subsequent use.

In the operation ot' the apparatus the pump is started, and t-he vacuum created in the suction-pipe 2 causes the water therein to rush To maintain and aid this vacuum, the valve 2O in the pipe 19v ispartially opened, so that the vapor and air and a portion of the water contained in the pump may pass into the separator 13, the same being discharged through the pi pe 22 into the separator chamber or casing 13, the water remaining in the said chamber while the air and vapor exhaust through the pipe 26 to the atmosphere. The separator remains full of water up to the line of the pipe 37, and as the water flows above this level a portion oi' it passes into the casing 33 of the water seal, the more or less constant supply causing the seal-chamber 33 and pipe 38 to be filled up also to the line oi' the pipe 37, and when there is agreater supply of Water the excess flows through the pipe 40 back to the suction-pipe 2. Thus it will be seen that while the air and vapor will be discharged from the steam through the separator the water will remain in the separator and seal and be supplied therefrom back to the suctionpipe, the seal eifectually preventing any of the air from passing to the suction-pipe while forming a trap to cause the water to remain therein and become retarded in its flow from the separator, and to thus seal the valves of the pump, making the pump capable of pumping extremely hot water. Hence exposure of the pump-valves cannot occur, and a single pump may be employed to serve the double purpose oi' a boiler-feeder and suction-pump to secure the return of the water of condenploying two pumps for these purposes. Also by the provision of the water seal no air can possibly return to the suction-pipe when discharged from the pump, thus relieving the latter of a large part of the labor ordinarily thrown thereon.

From the foregoing description, taken in connection with the accompanying drawings,

the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to Without departing from the principle or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is v 1. The combination with a suction-pipe, of a pump, a connection between the pump and suction-pipe, and a combined air-separator and water seal disposed in such connection and operating to receive water, vapor and air from the pump and discharge the vapor and air to the atmosphere and to retain the water and allow the same to pass back to the suctionpipe, substantially as described.

2. The combination with a suction-pipe, oi' a pump, a connection between the said pump and the suction-pipe, a separator in said connection provided with a sealed inlet and an air and vapor chamber having a valved outlet, and a` seal in communication with said separator and having a sealed exhaust in communication with said connection with the sucv SAMUEL V. SHA ROOD.

Witnesses:

F. H. MILLER, ELMER H. FLETCHER.

IOO 

